The PAP cDNA controlled by a wound-inducible promoter was introduced into Brassica napus via laser microbeam puncture, and plantlets resistant to Gentamycin were obtained. The transgenicity of these plantlets was verified by PCR amplification and the Southern blotting analysis, which showed that PAP cDNA together with the woundinducible promoter and a terminator have been integrated into the rape genome, with the transformation frequency being 1. 7%. The test of virus challenge showed that all these transgenic rape plants were resistant to virus TuMV mechanically inoculated in higher degree.